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Scitex Vision Grandjet Classic Printer using software version: 4.010
Care and Maintenance Guide
Important Notice
This document is delivered subject to the following conditions and restrictions:
This document contains proprietary information of Scitex Vision (the “Company”). Such information is hereby supplied solely for the purpose of assisting authorized users of the Company’s products to prepare the site where a printing system, the Grandjet Classic printer (the “System”), supplied with this document is to be installed.
Without the express prior written permission of Scitex Vision, no part of the contents hereof may be used for any other purposes, disclosed to any person or firm, or reproduced by any means.
The text and drawings herein are for the purposes of illustration and reference only. The specifications on which they are based are subject to change without notice.
Catalog No 399000148
Copyright © 2003 by
Scitex Vision
All Rights Reserved
First edition
October 2003 iii Scitex Vision Grandjet Classic Care and Maintenance
Trademarks
The name Scitex Vision®™ and the Scitex Vision logo are registered trademarks or service marks of Scitex Vision.
The mark Scitex Vision Grandjet Classic®™ is a trademark of the Company.
Other company and brand, product and service names are for identification purposes only and may be trademarks or registered trademarks of their respective holders. Data subject to change without notice.
Patents
The Scitex Vision Grandjet Classic printer is covered by the following US patents:
4.350.996 4.456.924 4.500.919 4.834.520 4.853.709 5.079.721 5.103.407
5.111.308 5.113.249 5.119.440 5.122.871 5.124.547 5.150.225 5.153.769
5.155.782 5.157.516 5.200.816 5.208.888 5.221.997 5.227.895 5.247.174
5.247.352 5.296.935 5.299.020 5.313.278 5.323.248 5.325.217 5.328.032
5.331.439 5.333.064 5.339.176 5.343.059 5.355.446 5.359.458 5.367.388
5.384.648 5.384.899 5.412.491 5.412.737 5.420.702 5.473.733 5.481.379
5.488.906 5.497.252 5.508.828 5.509.561 5.519.792 5.519.852 5.526.107
5.526.143 5.532.728 5.561.691 5.568.595 5.576.754 5.579.115 5.592.309
5.594.556 5.600.448 5.608.822 5.615.282 5.623.001 5.636.330 5.649.220
5.650.076 5.652.804 5.691.823 5.691.828 5.696.393 5.699.174 5.708.736
5.739.819 5.742.743 5.764.381 5.771.794 5.785.309 5.813.346 5.861.904
5.875.288 5.894.342 5.900.981 5.934.196 5.940.099 5.942.137 5.946.426
6.217.148 6.409.310
iv Scitex Vision Grandjet Classic Care and Maintenance
Disclaimer
The Company shall not be liable for any damages, costs and expenses (including, without limitation, damages in connection with bodily injuries, consequential damages and damages for loss of profits), incurred by the customer or by any third party, whether in action, in contract, tort or otherwise, arising out of, or in connection with, the System, its installation and/or operation, and any related accessories, products, parts, components or materials, except as, and to the extent, expressly specified in the applicable purchase contract.
Limited Warranty
The Company does not provide any warranty with respect to the System, its installation and/or operation, and any related accessories, products, parts, components or materials, except as, and to the extent, expressly specified in the applicable purchase contract.
Local Regulations
The customer is required to strictly follow the applicable international, regional, federal and state laws, regulations and standards, and nothing in this guide shall be construed as instructing or otherwise requiring or allowing the customer to violate such laws, regulations and standards. However, if and to the extent permitted by law, in case of inconsistency or contradiction between any requirement or procedure contained in this guide and any such laws, regulations and standards, the customer shall follow the stricter between the requirements and procedures specified in this guide and the requirements and procedures specified in any such laws, regulations or standards.
v Scitex Vision Grandjet Classic Care and Maintenance
Use of this Guide
Capable of withstanding continuous use for long periods of time, the Scitex Vision Grandjet Classic printer is able to cope easily with demanding, largevolume print runs. In keeping with this capability, routine care and maintenance procedures are recommended in order to maintain the system in proper working order, minimize any down-time, and ensure consistent, high-quality print output.
This guide is intended for use by system operators, and the information given applies to the Grandjet Classic printer model. Using the recommended guidelines for care and maintenance procedure frequency, together with the step-by-step instructions provided, will enhance print production and ensure smooth and trouble-free operation of all system components.
The abbreviations and acronyms used throughout this guide are listed below.
Abbreviation
CMYK
FSE
PDU
UPS
Meaning
Cyan, magenta, yellow, and black.
Field Service Engineer
Power Distribution Unit
Uninterrupted Power Supply vi
Safety Definitions
Safety instructions are provided for the protection of system operators and field service engineers (FSEs).
The following safety conventions are used to classify and identify hazards that will, or may occur, if instructions are ignored:
DANGER
Danger is used to identify conditions or actions for which a specific hazard is known to exist, and which
will cause severe personal - or even fatal - injury, or substantial equipment damage, if the instructions are ignored.
WARNING
Warning used to identify conditions or actions for which there is a known risk of Electrical Shock, which may cause serious (or even fatal) injury if the instructions are ignored.
WARNING
Warning used to identify conditions or actions for which a specific hazard of a non-electrical nature is known to exist, which may cause personal injury or equipment damage, if the instructions are ignored
CAUTION
Cautions are used to identify conditions or actions for which a potential hazard may exist, which will or can cause minor personal injury or equipment damage, if the instructions are ignored.
Scitex Vision Grandjet Classic Care and Maintenance
Contents
Chapter 1 - Safety Information
General Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Scitex Vision Grandjet Classic Printer Safety Apparatus . . 1-6
Emergency Stop Safety Devices . . . . . . . . . . . . . . . . . . . 1-6
Safety Warning Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Routine Precautionary Measures . . . . . . . . . . . . . . . . . . . . . 1-7
Handling Substrate Rolls . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Handling Ink and Solvent. . . . . . . . . . . . . . . . . . . . . . . . . 1-8
First Aid Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Chapter 2 - Daily Care
Visual Checks and General Cleaning . . . . . . . . . . . . . . . . . . 2-2
Checking the Emergency Stop Safety Devices . . . . . . . . . . 2-3
Main Emergency Stop Buttons . . . . . . . . . . . . . . . . . . . . 2-4
Head Carriage Emergency Stop . . . . . . . . . . . . . . . . . . . 2-6
Piston Emergency Stop Buttons . . . . . . . . . . . . . . . . . . . 2-8
Checking the Pneumatic System . . . . . . . . . . . . . . . . . . . . 2-12
Checking the Air Dryer . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Refilling the Main Ink Tanks . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Cleaning the Print Heads - Basic Method . . . . . . . . . . . . . 2-16
Chapter 3 - Weekly Care
Checking the Printer for Levelness . . . . . . . . . . . . . . . . . . . 3-2
Greasing the Linear Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Cleaning the Print Heads - Advanced Method . . . . . . . . . . 3-6
Emptying the Waste Ink Tank . . . . . . . . . . . . . . . . . . . . . . 3-12
Checking the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Checking the Pressure Shafts and Pistons . . . . . . . . . . . . . 3-14
Chapter 4 - 3-Monthly Care
Replacing the Ink Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Chapter 5 - General Maintenance
Replacing a Print Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
vii Scitex Vision Grandjet Classic Care and Maintenance
Care and Maintenance
the “What to do When” guide
Daily
• Clean Printer and
Print Production Area
Weekly
• Check Pressure Shafts and Pistons
Every 3 Months
As Required
Adhesive sticker - for a convenient reminder, peel off backing and attach to printer in a prominent position!
1-1
Chapter 1
Safety Information
Contents at a glance ...
General Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Scitex Vision Grandjet Classic Printer Safety Apparatus .1-6
Routine Precautionary Measures . . . . . . . . . . . . . . . . . . .1-7
Safety Information
General Safety Guidelines
The Grandjet Classic printer is designed and manufactured to ensure maximum safety of operation.
It should be installed, operated, and maintained in strict compliance with the safety precautions, warnings, and operating instructions contained in the
Scitex Vision Grandjet Classic User Manual, as well as those provided in this guide.
1. The Grandjet Classic printer has been designed to meet all the safety requirements applicable to printing equipment. However, anyone attempting to operate the system must be fully aware of potential safety hazards.
2. The product should be installed, maintained, and serviced by qualified field service engineers
(authorized by Scitex Vision Ltd.), in accordance with the information in the and the . It should be operated and routinely maintained according to the procedures provided in the Scitex Vision Grandjet
Classic User Manual, and in this guide.
3. The Grandjet Classic printer must have a dedicated mains power supply which must not - under any
circumstances - be used for additional equipment.
4. If the system is to be connected to an uninterrupted power supply, only a UL-authorized UPS is to be used.
1-2
5. The Grandjet Classic printer must never be used without proper ventilation in the print production area.
Details of extraction system air flow operating requirements are provided in the Scitex Vision
Grandjet Classic User Manual - see Appendix for
Technical Specifications.
6. The system in whole, or in part, should not be modified in any way without obtaining the prior written approval of Scitex Vision Ltd.
7. The owner should make certain that only properly trained, fully qualified personnel are authorized to operate the Grandjet Classic printer. An authorized operators list should be maintained.
8. Unauthorized personnel should not be allowed access to the system.
9. It is important that this and all other Grandjet
Classic printer manuals should be kept close at hand, studied carefully, and reviewed periodically by the authorized technicians and system operators.
However, the manufacturer or Vendor of the equipment makes no representation, that the act of reading this guide, or other Grandjet Classic printer manual, renders the reader qualified to operate, test, or calibrate the system.
Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
10. If the printer does not operate properly, or fails to respond to the controls as described in the Scitex
Vision Grandjet Classic User Manual or in this guide, the operator should:
•
•
Switch
OFF
power to the printer.
Follow the safety precautions as specified in this manual and other Grandjet Classic printer manuals.
•
Immediately contact the service office, report the incident, and await further instructions.
11. For recommended care and maintenance of the system, refer to the appropriate instructions given in
this guide. For quick reference, an adhesive Care &
Maintenance Chart is provided on page ix.
12. Electrical Shock Hazard
DANGER
Internal circuits use high voltage (220V) capable of causing death or serious personal injury.
IT IS DANGEROUS AND THEREFORE
FORBIDDEN TO:
• Dismantle electrical control cabinet cover
• Attempt to remove or open any other closed system covers or plugs!
WARNING
CAUTION
The following are examples of safety labels to warn of possible electrical hazards, and supplied as standard with the system:
DANGER
HIGH VOLTAGE
Protective Earth - Do not disconnect
An electrical hazard may exist if any light, monitor or visual indicator stays ON.
To prevent possible injury, immediately turn OFF the switch on the wall-mounted mains power distribution box.
1-3
Fuses blown within 36 hours of being replaced may indicate malfunctioning electrical circuits within the system.
Have the system checked by qualified service personnel, and do not attempt to replace the fuse
again!
Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
13. Fire Hazard
DANGER
Solvent and solvent-based ink used with the
Grandjet Classic printer have flammable and
irritant properties.
a
Combustion products: Oxides of Carbon.
a. Chemicals hazard information and packaging for supply (CHIP) classification
WARNING
To avoid electrical shocks or burns caused by using the wrong type of fire extinguisher, make sure your fire extinguisher has been approved for use on electrical fires.
Approved Fire Extinguisher Suitable Extinguishing Media reference
reference
For full details, refer to the Material Safety Data Sheets provided in the Scitex Vision Grandjet Classic User
Manual - see the Appendix.
Halon gas or dry powder
WARNING
Extreme care must be taken when handling inks and solvent, to prevent the risk of fire. Do not permit smoking or naked flames in the print production or storage areas and ensure that warning signs (see below) are prominently displayed in appropriate positions.
DANGER: EXPLOSIVE VAPOR, NO SMOKING, NO OPEN FLAMES, NO SPARKS
1-4
Class B
System operators should ensure that the print production area is kept clean and tidy. Since solvent and inks used with the Grandjet Classic printer have flammable properties, surfaces where any ink spillage or leakage has occurred (for example, behind the main ink tanks or on the floor) must be wiped clean immediately.
Always check that all main ink tanks are properly closed.
The waste ink tank should be emptied routinely, as necessary
CAUTION
Conductive fluids that seep into the active circuit components of the system may cause short circuits that can result in electrical fires. Do not place any liquid or food on any part of the system.
Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
14. Explosion Hazard
DANGER
Solvent and solvent-based ink used with the
Grandjet Classic printer have flammable and
irritant properties.
a
Combustion products: Oxides of Carbon.
a. Chemicals hazard information and packaging for supply (CHIP) classification
reference
reference
For full details, refer to the Material Safety Data Sheets provided in the Scitex Vision Grandjet Classic User
Manual - see the Appendix.
WARNING
Extreme care must be taken when handling inks and solvent, to prevent the risk of explosion.
Do not operate the system in the presence of explosive liquids, vapors, or gases.
Keep all sources of ignition away from the printer and work area.
Do not plug in or turn
ON
power to the system if hazardous substances are detected in the environment. Should these substances be detected after the system has been turned on, do not attempt to unplug it, or turn
OFF
power.
Evacuate and ventilate the area before turning
OFF power to the system.
15. Heavy Material Hazard
Special care must be taken to avoid personal injury when handling heavy substrates. See
Handling
Substrate Rolls
1-5 Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
Scitex Vision Grandjet Classic Printer Safety Apparatus
Emergency Stop Safety Devices
The Grandjet Classic printer is equipped with three types of emergency safety devices, as follows:
•
Head Carriage Emergency Stop Mechanism
•
Main Emergency Stop Buttons
•
Piston Emergency Stop Buttons
The operator must be familiar with the location and operation of each type of safety device; these are illustrated in detail in this guide, as well as in the Scitex
Vision Grandjet Classic User Manual.
Safety Warning Labels
Grandjet Classic printers are supplied with safety warning labels fitted securely in prominent positions, illustrated examples of which are shown in the Scitex
Vision Grandjet Classic User Manual (see Chapter One,
Safety Information).
Additional quantities of certain labels are supplied with the system, for strategic placement within the print production and storage areas.
WARNING
All emergency safety devices fitted to the
Grandjet Classic printer must be checked at system start-up.
In addition, they should be tested every day, in accordance with the instructions provided in
this guide - see Checking the Emergency Stop
1-6 Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
Routine Precautionary Measures
Grandjet Classic Printer
Handling Substrate Rolls
WARNING
Substrate Rolls may be extremely bulky and heavy!
EXIT
When loading, unloading, or moving substrate rolls, always take the following precautions:
• Use substrates recommended by Scitex Vision Ltd.
• When lifting heavy substrate rolls, take extreme care to avoid back strain or injury.
• It is recommended that rolls should be lifted by a minimum of two persons.
For heavy materials, up to six persons may be required.
• When lifting and moving very heavy substrate rolls, use of a forklift is mandatory.
• Keep Emergency Exits clear at all times!
1-7 Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
Grandjet Classic Printer
Handling Ink and Solvent
DANGER: EXPLOSIVE VAPOR, NO SMOKING, NO OPEN FLAMES, NO SPARKS
When handling ink and solvent, always take the following precautions:
• Use only inks and solvent approved by Scitex Vision Ltd.
• Keep all sources of ignition far away from the printer and from the print production and storage areas to eliminate the risk of fire.
• Avoid spillage and contact with skin and eyes; wear the safety glasses and gloves provided for protection against splashing.
• Always handle inks and solvent in a well-ventilated area. To avoid inhalation of solvent fumes and vapors, wear the mask provided.
• Maintain good ventilation in the print production area.
• Wear suitable clothing and shoes whenever in the print production and storage areas.
• Store inks and solvents in closed, upright containers in normal, cool warehouse conditions.
• Dispose of waste materials in accordance with individual country safety requirements.
• Keep Emergency Exits clear at all times!
referenc
reference
Inks and solvent used with the Grandjet Classic printer have flammable and irritant properties.
For full details, see the Material Safety Data Sheets in the Scitex Vision Grandjet Classic User
Manual(Appendix).
1-8 Scitex Vision Grandjet Classic Care and Maintenance
Safety Information
Grandjet Classic Printer
First Aid Treatment
The following guidelines are recommended in the event of First Aid treatment being required:
Inhalation
Skin Contact
Move operator to fresh air immediately.
If there is respiratory distress, administer oxygen and seek medical attention.
Wash affected area with soap and water.
Seek medical advice in the event of ensuing dermatological problems.
Eye Contact
Rinse eyes immediately with copious amounts of clean water or sterile eye wash solution.
If redness or soreness persists, seek medical advice.
SAFETY
FIRST
EYE WASH
FOUNTAIN
1-9 Scitex Vision Grandjet Classic Care and Maintenance
2-1
Chapter 2
Daily Care
Contents at a glance ...
Visual Checks and General Cleaning . . . . . . . . . . . . . . . .2-2
Checking the Emergency Stop Safety Devices . . . . . . . . .2-3
Checking the Pneumatic System . . . . . . . . . . . . . . . . . . .2-12
Refilling the Main Ink Tanks . . . . . . . . . . . . . . . . . . . . . . .2-14
Cleaning the Print Heads - Basic Method . . . . . . . . . . . .2-16
Daily Care
Visual Checks and General Cleaning
To maintain the Grandjet Classic printer in good working order it is advisable to make a visual check of the system every day. In this way, the early detection of anything unusual will help to identify signs of general wear and tear, or possible component malfunction.
By eliminating the risk of problems developing at a later stage, periods of system downtime can be significantly reduced and, in many cases, eliminated.
When making a visual check of the system, look for:
• cables excessively loose
• exposed electrical wiring
• abnormal ink leakage
• loose connections
• components overheating
• blocked vents
Daily general cleaning of the printer - as well as the print production area - will help to eliminate the build-up of dust, dried ink, and dirt.
KEEP
WORK
AREAS
CLEAN!
In addition, remove any obstacles or foreign objects which may have been placed inadvertently within close proximity of the printer and surrounding area, to eliminate the risk of possible safety hazards.
SAFETY
FIRST
+
Clean
Work
Area
=
note
Exposed electrical wiring may not only be a potential safety hazard but could also cause interference or damage to the system.
2-2 Scitex Vision Grandjet Classic User Manual
Daily Care
Checking the Emergency Stop Safety Devices
The Emergency Stop safety devices fitted to the Grandjet
Classic printer must be checked daily, to ensure they are in proper working order. This is normally carried out as part of the system start-up procedure. However, for printers operating on a 24-hour, round-the-clock basis, it is important to ensure that this safety check is performed once per day, as a matter of routine.
Ensuring the Emergency Stop Safety Devices are fully operational requires the inspection and checking of:
•
Main Emergency Stop buttons
•
Head Carriage Emergency Stop mechanism
•
Piston Emergency Stop buttons
•
Mains Power Emergency Stop button
(on wall-mounted mains power distribution unit)
Full details and method of operation of all these
Emergency Stop safety devices is described the Scitex
Vision Grandjet Classic printer. See the section entitled
Emergency Safety Devices (Chapter 1); the position of each device on the printer is clearly illustrated in the figures provided.
Step-by-step instructions for checking that each
Emergency Stop safety device is working properly are given in the following sections of this chapter.
WARNING
Immediately report the failed operation of any
Emergency Stop Safety Device to your Scitex
Vision Ltd. FSE and do not attempt to tamper with
the system or continue with its use!
2-3 Scitex Vision Grandjet Classic User Manual
Daily Care
Main Emergency Stop Buttons
The system is equipped with two Main Emergency Stop buttons. These are clearly marked and are located one at each end of the Grandjet Classic printer, on the left
and right sides of the main frame, as shown in Figure 1 .
Main
Emergency
Stop Button
Main
Emergency
Stop Button
Main Emergency Stop buttons should be activated in
any emergency situation, or in the event of substrate material becoming jammed.
Whenever one of the Main Emergency Stop Buttons has been activated, once the emergency situation has been attended to and you wish to resume printing, you may release it by slightly twisting the plastic ring beneath the top of the button, until it pops up and is now in the ready position, as described below.
CAUTION
Figure 1.
Main Emergency Stop Buttons
The Main Emergency Stop buttons operate manually and when pressed, electrical power to all motors is disconnected and air is purged from the pneumatic system. The pressure shaft at the rear of the printer drops down instantaneously and all movement ceases.
When performing this procedure, it is important to make sure that both the Left and Right
Emergency Stop buttons have been restored to the READY position so that either is available for immediate use in the event of an emergency.
This will eliminate the risk of possible injury to the operator and prevent any obstruction caused by hands, fingers, clothing, or other foreign objects.
2-4 Scitex Vision Grandjet Classic User Manual
Daily Care
!
Checking the Main Emergency Stop Buttons
1. Press the Main Emergency Stop button on the right side of the printer.
Figure 2. Pressing the Main Emergency Stop Button
Figure 3. Releasing the Main Emergency Stop Button
The Main Emergency Stop button pops up and is now restored to the READY position
4. Press the Reset button located above the Piston
Control switch at the rear of the printer:
2. Check that the reaction to Step 1 instantaneously causes the following:
•
•
• electrical power to the motors is disabled and all
movement ceases
air is purged from the pneumatic system the Y-axle pressure roller drops down
3. Release the Main Emergency Stop button by slightly twisting the red plastic ring beneath the top of the button, as shown in
.
Reset button
Air pressure returns to the pneumatic system, enabling activation of the pressure shaft again.
5. Press the piston control up arrow to close
(and return memory to) the pressure shaft.
6. Repeat Step 1 through Step 5 to check the Main
Emergency Stop button on the left side of the printer.
2-5 Scitex Vision Grandjet Classic User Manual
Daily Care
Head Carriage Emergency Stop
The head carriage (located at the front of the printer) is protected on all sides by a specially designed cover, fitted to which is metal frame containing an important safety feature - the Head Carriage Emergency Stop
Mechanism - which is shown in
below.
Head carriage
Head carriage cover
Emergency stop mechanism
(in metal frame)
While the head carriage moves rapidly backwards and forwards along the length of the printer, any contact with the metal frame (and consequently the microswitch stop mechanism), causes all motion to stop immediately.
The Head Carriage Emergency Stop Mechanism is fully operational in both directions - whether the carriage is moving from left to right, or vice versa - which prevents injury to the operator caused by accidental contact with moving parts. This eliminates the risk of any possible injury to the operator and prevents obstruction caused by hands or fingers, clothing, or other foreign objects.
CAUTION
Figure 4. Head Carriage Emergency Stop Mechanism
Whenever performing this checking procedure, it is important to make sure that the head carriage is returned to the Home position (as described in
) so that when resumed, printing commences from the correct position.
note
In addition to providing protection to the print heads and helping to keep the head carriage and printing table clean during spraying, the cover also enables visual inspection of the heads through a perspex panel at the front, and allows easy access for changing ink filters etc. through a door at the side.
2-6 Scitex Vision Grandjet Classic User Manual
Daily Care
!
Checking the Head Carriage Emergency Stop
1. Make sure the Grandjet Classic printer is loaded with substrate and that the head carriage is in the
home position.
2. From the Grandjet Classic main screen, select any file (for testing purposes) and place it first in the print queue.
3. In the Status area, select 2 Pass mode and Slow speed.
4. Click on the Print icon.
Printing commences and the head carriage starts its forward and backward movement along the length of the printing table.
5. After printing a few passes, use one hand to carefully touch the metal frame fitted to the head
carriage, as shown in Figure 5 .
This will activate the magnetic microswitch stop mechanism and cause movement of the head
carriage to cease instantly!
Check that performing this Step caused the head carriage movement to stop immediately.
6. From the Grandjet Classic main screen, click on the Maintenance icon.
The Maintenance dialog box opens:
Figure 6. Maintenance Dialog Box
7. Under the Motor column (on the right), click on the
Home button (see
).
The head carriage moves to the left, and stops when it reaches the home position (in front of the cleaning station), where it remains stationary.
When resumed, printing will now commence from the correct point.
Figure 5. Activating the Head Carriage Emergency Stop
2-7 Scitex Vision Grandjet Classic User Manual
Daily Care
Piston Emergency Stop Buttons
The system has three Piston Emergency Stop buttons which are clearly marked and located at the rear of the
Grandjet Classic printer, fitted to the main frame (see
Piston
Emergency
Stop
Button
Figure 7.
Piston Emergency Stop Button
The Piston Emergency Stop buttons operate manually and may be pressed in the event of the operator’s hand or fingers inadvertently being trapped between the piston-operated pressure shaft and the rubber roller.
Piston
Emergency
Stop Button
Aluminum
Frame
Pressure
Shaft
Figure 8. Piston Emergency Stop Button - Printer Rear View
When any Piston Emergency Stop button is activated, electrical power to all motors is disconnected and air is purged from the pneumatic system.
The pressure shaft at the rear of the printer drops
down instantaneously and all movement ceases.
DANGER
The pistons exert considerable pressure, therefore extreme care must be taken to avoid injury to hands or fingers.
Only ONE person may operate the piston!
2-8 Scitex Vision Grandjet Classic User Manual
Daily Care
!
Checking the Piston Emergency Stop Buttons
1. Standing at the rear of the printer, and with the
Y-axle pressure roller activated, press down the first Piston Emergency Stop button (starting on either the left or right side).
3. Release the Piston Emergency Stop button by twisting the red button in a clockwise direction (as shown by the arrows marked on the top of the button).
2. Check that the reaction to Step 1 instantaneously causes the following:
• electrical power to the motors is disabled and all
movement ceases
• air is purged from the pneumatic system
• the Y-axle pressure roller drops down
The Piston Emergency Stop button pops up and is now restored to its original position and is READY for activation in the event of an emergency.
4. Press the Reset button located above the Piston
Control switch at the rear of the printer:
Reset button
Air pressure returns to the pneumatic system, enabling activation of the pressure shaft again.
2-9 Scitex Vision Grandjet Classic User Manual
Daily Care
5. Press the piston control up arrow to close
(and return memory to) the pressure shaft.
6. Repeat
Step 1 through Step 5 to check each of the
other two Piston Emergency Stop button/s at the rear of the printer.
CAUTION
Whenever performing this checking procedure, it is important to make sure that all Piston
Emergency Stop Buttons are enabled (refer to
Step 3 ) and ready for immediate use in the event of
an emergency.
This will eliminate the risk of possible injury to the operator and prevent any obstruction caused by hands, fingers, clothing, or other foreign objects.
Mains Power Emergency Stop
In addition to the safety devices fitted to the Grandjet
Classic printer, it is important to perform a daily check of the mains power Emergency Stop button to make sure that this is fully operational.
It is recommended that this procedure is performed during system start-up,
AFTER
turning on the mains power switch and circuit breaker on the electrical control panel
(located at the rear of the printer on the left side), but
BEFORE
turning on any other circuit breakers .
Power to the computer should also be
OFF
.
CAUTION
Access to the wall-mounted mains PDU must be kept clear at all times!
2-10
!
Checking the Mains Power Emergency Stop
1. Check that the mains circuit breaker on the wall-mounted PDU is in the ON (up) position and that the PDU Emergency Stop button is released
(ready).
Scitex Vision Grandjet Classic User Manual
Daily Care
2. Standing at the electrical control cabinet at the rear of the printer (from the rear, this is located on the
), make sure that all circuit breakers on the PDU circuit breaker panel are in the OFF (down) position.
Pilot Lights
Illuminated
Figure 10. Circuit Breaker Panel
4. Standing at the wall-mounted mains PDU, press
the Emergency Stop button (see Figure 11 ).
PDU- Circuit Breaker Panel
Cut-out in door
(circuit breakers easily accessible when cabinet door closed)
Figure 9. Electrical Control Cabinet
3. Check that both pilot lights are illuminated (as shown in
), indicating voltage coming to the PDU.
Press here
2-11
Figure 11. Wall-mounted Mains PDU
This instantly causes complete disconnection of the system from the mains power supply.
5. Return to the electrical control panel at the rear of the printer and check that the two pilot lights on the circuit breaker panel are not illuminated, indicating that there is no voltage to the single phase.
Scitex Vision Grandjet Classic User Manual
Daily Care
6. Release the Emergency Stop button on the wall-mounted PDU to return it to the ready state.
CAUTION
Whenever performing this checking procedure, it is important to make sure that the Mains Power
Emergency Stop button is returned to the proper
state ( Step 6 ) so that it is ready for immediate use
in the event of fire or any other emergency.
Access to the wall-mounted PDU must be kept clear at all times!
Checking the Pneumatic System
In addition to the normal checks performed before printing to ensure that the air lines are patent and functioning properly, it is recommended that the pneumatic system is checked on a daily basis. This will help to maintain efficient operation of the Grandjet
Classic printer.
Besides performing a visual check of air pressures, the air line water and moisture traps should be inspected and drained if necessary, as described below.
Checking the pneumatic system is performed after maximum pressure has been reached or, if after complete shutdown, when maximum pressure has been reached again.
!
Checking the Pneumatic System
1. Ensure that Mains power to the compressor (or central compressed air system) is ON, and that the unit is operating satisfactorily - see note below.
note
The operator should acquaint himself with the service procedures laid down by the compressor manufacturer and ensure that these are carried out as specified.
2. Standing in front of the pneumatic control panel, verify that the pressure readings on the air pressure gauges are correct, in accordance with
2-12 Scitex Vision Grandjet Classic User Manual
Daily Care
Table 1. Pneumatic System - Air Pressure Settings
Air Pressure Gauge
Main ink tanks
Main gauge
Setting
0.2 BAR
2.5
BAR
Main Air Pressure Regulator
Main Air Pressure Gauge
Water Trap
Fine Moisture Trap
Ink Tanks Pressure Regulator
Ink Tanks Pressure Gauge
Figure 12. Air Pressure Gauges
3. If necessary, adjust the appropriate pressure regulator (ink tanks, or main), by turning it in a
clockwise or counter-clockwise direction, until the correct pressure registers on the corresponding gauge - see
To gain access to the pressure regulators you will need to open the pneumatic cabinet door.
When adjusting a pressure regulator, the black regulator cap must be pulled upwards or downwards (see below) before turning it in a clockwise or counter-clockwise direction, as appropriate.
Main regulator
Main ink tanks -
pull cap upwards pull cap downwards
Push the cap down (or up) again when adjustment is finished.
4. Inspect all air hoses for leaks.
5. Check the water trap beneath the main pressure regulator (see
Figure 12 ) and if necessary, press the
valve at the base in an upward direction until all the water has drained. Release the valve and make sure the trap is closed.
6. Check the fine moisture trap (see
) and if necessary release any excess moisture by turning the knurled nut at the base of the trap in a
clockwise direction until all the moisture has drained. Then turn the nut counter-clockwise until the trap is securely closed.
7. Close the pneumatic cabinet door.
2-13 Scitex Vision Grandjet Classic User Manual
Daily Care
Checking the Air Dryer
In accordance with site preparation specifications provided by the Scitex Vision Ltd. FSE, the compressor supplying air to the Scitex Grandnjet system will have been fitted with the appropriate air dryer. It is recommended that this is checked daily to ensure that is coping adequately.
!
Checking the Air Dryer
1. Check that the air dryer fitted to the compressor is working properly and that air in the air lines is dry and free of contaminants, such as oil or rust.
2. If moisture or excessive humidity is present, drain the excess liquid from the air line water trap (see
on the previous page) by pressing the valve at its base in an upward direction, until all the water has drained.
Release the valve and make sure the trap is closed.
3. Check if the trap needs cleaning, repair, or replacement and proceed accordingly.
4. In the event that the air dryer has become damaged or is no longer working efficiently, replace it with a new dryer of the appropriate type.
Refilling the Main Ink Tanks
It is recommended to refill the main ink tanks every day so that the Grandjet Classic printer does not run out of ink during printing. This is especially important for systems handling heavy print runs. The procedure may be performed while printing is in progress.
!
Refilling the Main Ink Tanks
When performing this procedure, use of a funnel is recommended.
1. Close all air pressure hoses connected to the main ink tanks you wish to refill. (Refilling requirements are established by visual inspection).
2. Release the excess air from the first main tank, by turning the blue tap located on the side.
3. Unscrew the black cap and tubing from the tank.
4. With the main tank standing firmly, carefully refill it with ink of the correct color (as marked on the outside of the tank) making sure you avoid any splashing - see
.
2-14 Scitex Vision Grandjet Classic User Manual
Daily Care
Figure 13.Filling the Main Ink Tank
5. When the ink tank contains no more than 4 liters, stop filling; replace the screw cap on the ink bottle and tighten firmly.
CAUTION
It is recommended not to fill a main tank with more than 4 liters of ink, and that each tank should contain no less than 2 liters.
Screw the black cap (and its corresponding tubing) into place on the main ink tank, and tighten firmly
.
through Step 5 for any other main
ink tanks that require refilling.
7. Check that all caps are tightly closed, then open the corresponding air pressure tap on each of the main ink tanks.
8. Check the ink tank air pressure gauge reading (see
) on the air pressure control board
(situated behind the computer, at the base of the printer), and if necessary adjust to 0.2 BAR .
Figure 15. Air Pressure Gauge - Main Tanks
Table 2. Main Ink Tanks - Required Air Pressure
Air Valve
Position
Left
System Component to which
Air Pressure is Controlled
Main ink tanks
Setting
0.2 BAR
Figure 14. Tightening the Main Ink Tank Cap
2-15 Scitex Vision Grandjet Classic User Manual
Daily Care
Cleaning the Print Heads - Basic
Method
Before commencing the Print Head Cleaning procedure, check that the plastic spray bottle
(supplied with the system) is filled with clean solvent and is readily at hand.
!
Cleaning the Print Heads with Solvent
1. With the head carriage in the parked position (in front of the cleaning station), carefully spray the print heads with clean solvent until they are all thoroughly wet - see
The solvent dissolves dried ink, loosening any clogged particles.
2. Remove the resulting residue from each print head in turn, by holding the vacuum cleaner rubber pipe firmly against the print head while pressing the
vacuum button (see Figure 17 ).
Figure 16. Spraying the Print Heads with Solvent
2-16
Figure 17. Removing Ink Residue with Vacuum Cleaner
WARNING
Take special care to avoid contact or scratching the surface of the print heads with the vacuum cleaner pipe.
Scitex Vision Grandjet Classic User Manual
Daily Care
Surplus ink, dried particles and debris collect in a waste ink bath beneath the cleaning station, from where they drain into the waste ink tank (shown in
Figure 18 ) located in a cabinet at the rear of the
printer.
Waste Ink Bath
As the ink sprays onto the paper, six blocks of 6 thin vertical lines appear, as shown in this example:
Waste Ink Tank
Figure 18. Waste Ink Tank and Cabinet
3. With black ink spraying, steadily hold a sheet of white, A4-sized paper at a short distance in front of the print heads.
Move the paper slightly in a horizontal direction (to the left or right) for a short distance (approx 1cm).
2-17
Each block of printed lines corresponds to the print head
arrangement on the head carriage - see Figure 19 .
BLACK
A
B
C
D
E
F
G
H
YELLOW
A
B
C
D
E
F
MAGENTA
A
B
C
D
E
F
CYAN
A
B
C
D
E
F
Figure 19. Print Head Arrangement on Head Carriage
Scitex Vision Grandjet Classic User Manual
Daily Care
4. Inspect each of the six printed blocks and verify that all lines are sprayed evenly, and that no portions of a line are missing.
5. Repeat
and
Step 4 for each of the remaining
colors: yellow, magenta, and cyan.
If there are no imperfections in any of the printed blocks, the head cleaning procedure is now complete.
However, if any nozzles still appear to be clogged, repeat the procedure (on the blocked print heads) to remove any dried ink particles.
6. Test the print heads again to ensure that cleaning has been performed satisfactorily.
note
This procedure may be performed as and when required during printing, and repeated as often as necessary to prevent ink build-up in the print head nozzles and maintain patency.
reference
reference
In the event that print heads still appear to be blocked after repeating the above procedure, it will be necessary to perform more advanced cleaning.
Refer to the step-by-step instructions for
Print Heads - Advanced Method on page 3-6.
2-18 Scitex Vision Grandjet Classic User Manual
3-1
Chapter 3
Weekly Care
Contents at a glance ...
Checking the Printer for Levelness . . . . . . . . . . . . . . . . . .3-2
Greasing the Linear Bar. . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Cleaning the Print Heads - Advanced Method . . . . . . . . .3-6
Emptying the Waste Ink Tank . . . . . . . . . . . . . . . . . . . . .3-12
Checking the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
Checking the Pressure Shafts and Pistons . . . . . . . . . . .3-14
Weekly Care
Checking the Printer for Levelness
It is recommended that the Grandjet Classic printer printer is checked every week to make sure that it is standing perfectly level. This is important since even the slightest shift or floor movement could impair printing alignment.
For this purpose, two spirit levels are built into the printer main frame - one on each of the left and right sides.
!
Checking the Printer for Levelness
2. Check that the air bubble is positioned precisely in the center of the level, as shown below:
1. Standing at the rear of the printer, inspect the spirit level located on the left side of the main frame (near
the electrical control panel) - see Figure 20 .
Inspect Here
Inspect Here
Figure 20. Spirit Level on Left Side
3-2
Figure 21. Spirit Level on Right Side
4. If both levels are reading correctly, the leveling check is complete. If not, contact your Scitex
Vision Ltd. FSE and await further instructions.
Scitex Vision Grandjet Classic User Manual
Weekly Care
Greasing the Linear Bar
The linear bar at the base of the Grandjet Classic printer printer head carriage requires a light application of grease every week. This is recommended to ensure smooth operation and maintenance of moving system components.
WARNING
Before commencing this procedure, make sure that a
No 5 Allen key is readily at hand and that the grease gun
(supplied with the system) is filled with sufficient grease of the recommended type.
Solvent and solvent-based ink used with the
Grandjet Classic printer have flammable and
irritant properties.
a
For full details, refer to the Material Safety Data
Sheets provided in the Scitex Vision Grandjet
Classic User Manual - see the Appendix.
a. Chemicals hazard information and packaging for supply (CHIP) classification
!
Greasing the Linear Bar
1. Press either of the Main Emergency Stop buttons.
The Grandjet Classic printer is now in safe mode.
2. Apply a small quantity of solvent to a soft cloth and working along the full length of the printing table, wipe the head carriage linear profile clean, carefully removing any dried ink splashes.
3. Working from the front of the printer, and using a
No 5 Allen key, unscrew the four screws and lift and remove the panel from the right side of the printer
Front panel
CAUTION
When handling inks and solvent, always adhere to the recommended precautions - see
Handling Ink and Solvent on page 1-8.
Use only inks and solvent approved by Scitex
Vision Ltd.
3-3
Figure 22. Removing the Front Panel - Right Side
Scitex Vision Grandjet Classic User Manual
Weekly Care
You will now have easy access to the two grease nipples on the head carriage linear bar.
4. Carefully pull the head carriage manually towards
) until it reaches the furthermost right position on the printer frame.
When performing this step, use both hands - one holding the base of the head carriage and the other holding the cable track, as shown in
Apply Grease Here
Figure 24. Applying Grease to the Front Nipple
Apply
Grease
Here
Figure 23. Moving the Head Carriage Manually
5. Using the grease gun, apply a small quantity of grease to each of the two nipples at the front of the head carriage as shown in
.
Figure 25. Second Grease Nipple at Front
6. Carefully pull the head carriage back to the left, until it reaches the home position.
3-4 Scitex Vision Grandjet Classic User Manual
Weekly Care
7. Apply a small quantity of grease to the nipple at the
left side of the carriage - see Figure 26 .
Apply Grease Here
Figure 26. Grease Nipple at the Side of the Head Carriage
8. Replace the front right panel (removed in
) and screw firmly into position.
9. When ready to start printing, release the Main
Emergency Stop button by slightly twisting the plastic ring beneath the top of the button, until it pops up and is now in the ready position - see
.
Figure 27. Releasing the Main Emergency Stop Button
The Main Emergency Stop button pops up and is now restored to the READY position.
CAUTION
It is important to make sure that the Emergency
Stop button has been restored to the READY position so that it is available for immediate use in the event of an emergency.
10. Press the Reset button located above the Piston
Control switch at the rear of the printer:
Reset button
3-5
Air pressure returns to the pneumatic system, enabling activation of the pressure shaft again.
11. Press the piston control up arrow to close
(and return memory to) the pressure shaft.
Scitex Vision Grandjet Classic User Manual
Weekly Care
Cleaning the Print Heads - Advanced Method
It is recommended that advanced print head cleaning be performed once per week, however the frequency with which this will be required will naturally depend upon the printer work load. Being the most thorough of the Grandjet Classic printer printer head cleaning procedures, this involves the cleaning of all print heads of each color group. It should only be carried out by
operators who have been trained by a Scitex Vision
Ltd. FSE.
!
Cleaning the Print Heads - Advanced Method
1. Make sure the head carriage is in the parked position, in front of the cleaning station.
2. Using the plastic spray bottle filled with clean solvent, thoroughly wet each row of print heads
(black, yellow, cyan, magenta, and cyan).
Before commencing, check that the following equipment is readily at hand:
•
•
•
•
•
•
•
Plastic spray bottle* filled with solvent
Additional solvent
Glass syringe 50cc*
Silicone tubing (to attach to syringe)
Spare ink filter
Black plastic stopper
White plastic nozzle caps
* supplied with the system
Figure 28. Spraying the Print Heads with Solvent
3-6 Scitex Vision Grandjet Classic User Manual
Weekly Care
3. From the Grandjet Classic main screen, click on the Maintenance icon.
The Maintenance dialog box opens - see
.
5. Disconnect the air tube from the first secondary ink tank (black ink) and in place of this, insert the plastic stopper provided (to create a vacuum inside
the secondary tank) - see Figure 30 .
Plastic stopper
Figure 29. Maintenance Dialog Box - 35V Power ON
4. Under the Power Supply controls, turn
OFF
the 35V power supply to the heads that use black ink by clicking the black button at the top (which is
currently in the On status as shown in Figure 29 ),
The 35V power supply status (for heads using black ink) changes to Off.
Place a large piece of absorbent disposable paper at the base of the head carriage to absorb any surplus ink drops when disconnecting ink tubes.
Figure 30. Inserting the Stopper
6. Working from the top of the head carriage and starting with the innermost print head (black
[labelled F in
Figure 36 on page 3-11]), proceed as
follows:
Carefully unscrew (in a counter-clockwise direction) and disconnect the ink pipe plastic coupler from the first secondary ink tank as shown in
3-7 Scitex Vision Grandjet Classic User Manual
Weekly Care
Figure 31. Disconnecting the Ink Pipe from the Secondary Tank
7. Screw a white plastic cap onto the nipple and gently turn in a clockwise direction for half a turn to seal it - see
.
8. Attach a spare ink filter to two lengths of silicone tubing, making sure that the connections are screwed firmly into position on the upper and lower portions of the filter (as illustrated in
It is advisable to keep a spare ink filter and two lengths of silicone tubing (one short; one long) for dedicated use in this procedure.
They should be connected so that the flow of solvent is
always in the same direction, to prevent clogging. For this reason it is helpful to mark a directional arrow on the
filter connections with a felt-tipped pen (see Figure 34 ).
Use of a separate piece of silicone tubing is recommended when re-filling the syringe with solvent.
9. Screw the end of the tubing attached below the ink filter onto the ink pipe plastic coupler (disconnected from the print head in
connection firmly - see
Plastic cap
Figure 32. Fitting Plastic Cap
3-8
Figure 33. Attaching Silicon Tubing
10. Carefully fill the glass syringe (provided) with 50cc
clean solvent and attach the nozzle to the end of the silicone tubing fitted to the top of the ink filter.
Scitex Vision Grandjet Classic User Manual
Weekly Care
11. Using steady pressure on the plunger, slowly inject the solvent into the print head, until the syringe is completely empty - see
.
Figure 34. Flushing the Print Head with Solvent
Note:
Figure 34 does not show the filter attached to the syringe.
Any dried or clogged ink residue will be dissolved. note
For clarity and demonstration purposes, the print head being injected with solvent in
, corresponds to the head labelled A (and not F) in
12. Disconnect the silicone tubing from the ink pipe plastic coupler.
13. Remove the white plastic cap from the secondary tank nipple and replace the plastic coupler
(removed in Step 6 ), taking care to screw gently in
place in a clockwise direction for half a turn.
14. Remove the black plastic stopper from the air tube
(refer to Step 5 ) and re-connect the tube to the first
secondary ink tank.
15. Disconnect the syringe from the short length of silicone tubing and carefully refill it with solvent
(using separate tubing as previously recommended).
16. Working outwards, repeat Step 6 ,
through
Step 15 , to inject each of the remaining
black print heads in the row with solvent. (Referring to
Figure 36 , the sequence would be as follows: E; D;
C; B; and finally A).
17. Using the plastic spray bottle filled with clean solvent, thoroughly wet each row of print heads in all color groups (see
).
18. From the Maintenance dialog box, switch ON the
35V Power to the print heads that use black ink
(turned Off in
) by clicking the black button, and then clicking on Reset.
19. Remove the residue from each black print head in turn, by holding the vacuum cleaner rubber pipe firmly against the print head (see
pressing the vacuum button. Keep vacuuming until you are able to see the ink coming through each head and tube.
3-9 Scitex Vision Grandjet Classic User Manual
Weekly Care
21. Working systematically downwards and outwards, repeat the solvent-injecting procedure for each of the other color groups of print heads - magenta and
cyan, respectively - until all the print heads in all rows have been injected with solvent.
CAUTION
When each color is complete, remember to spray all the print heads to keep them wet.
Figure 35. Vacuuming the Heads
WARNING
Take special care to avoid contact or scratching the surface of the print heads with the vacuum cleaner pipe.
20. Moving to the next row of heads (yellow), repeat
Step 4 to turn OFF 35V power to these heads and
again working outwards (in the order described), repeat
, then
through
, until all the heads in the row have been injected with solvent.
Make sure that all print heads in all color groups have been thoroughly cleaned and all residue removed before proceeding to the next step, where you will test the head nozzles for patency.
22. With black ink spraying, steadily hold a sheet of white, A4-sized paper at a short distance in front of the print heads.
Move the paper slightly in a horizontal direction (to left or right) for a short distance (approx 1cm).
3-10 Scitex Vision Grandjet Classic User Manual
Weekly Care
As the ink sprays onto the paper, six blocks of 6 thin vertical lines appear, as shown in this example:
Each block of printed lines corresponds to the print head
arrangement on the head carriage - see Figure 36 .
BLACK
A
B
C
D
E
F
G
H
YELLOW
A
B
C
D
E
F
MAGENTA
A
B
C
D
E
F
CYAN
A
B
C
D
E
F
Figure 36. Print Head Arrangement on Head Carriage
3-11
23. Inspect each of the six printed blocks and verify that all lines are sprayed evenly, and that no portions of a line are missing.
24. Repeat
for all groups of print heads and verify that all lines are sprayed evenly, and no portions of a line are missing.
If any sign of clogging is still apparent, spray the blocked print heads with solvent and vacuum again as previously described.
25. When all print heads are spraying heads correctly with no signs of clogging, click OK to close the
Maintenance dialog box.
If any sign of clogging still remains, clean the block heads again by repeating the above procedure and injecting them again with solvent.
note
In the event that clogging persists, it will necessary to replace the faulty print head/s.
Refer to the step-by-step instructions for
Scitex Vision Grandjet Classic User Manual
Weekly Care
Emptying the Waste Ink Tank
When ink particles and residue are removed from the print heads with the vacuum pipe, the waste material is sucked into a special waste ink tank. This receptacle is fitted to the base of the Grandjet Classic printer printer main frame and held in place within a metal
housing, as shown in Figure 37
.
It is recommended that the waste ink tank be emptied every week to eliminate the risk of the tank overflowing and also to prevent the build-up of excess dried ink thereby ensuring efficient print head cleaning. During heavy print runs, this procedure may be required even more frequently.
Air pressure tube
Waste ink tube
Exhaust tube
Waste ink tank
Metal housing
Figure 37. Waste Ink Tank
The tank has a fume exhaust (a flexible pipe connected to the overhead hood) and is also connected to the pneumatic system. A flexible plastic pipe attached to the vacuum cleaner leads into the neck of the waste tank. Both this and the exhaust pipe are held firmly in place, fitting through holes in a black plastic cap screwed to the tank - see
.
3-12
Plastic Cap
Figure 38. Waste Ink Tank Connections note
While emptying the waste tank, it is recommended to place some absorbent paper beneath the tank, to absorb any surplus leakage and help keep the housing clean.
Scitex Vision Grandjet Classic User Manual
Weekly Care
!
Emptying the Waste Ink Tank
1. Unscrew the black plastic cap on the top of the waste tank and carefully remove the tank from its metal housing - see
.
2. Remove all ink waste and residue from the bottom of the waste ink tank by carefully pouring it into the waste container allocated for this purpose, as shown in
.
3. Clean the interior of the waste ink tank by carefully swilling it with solvent, and then pouring this also into the waste container.
CAUTION
Dispose of waste ink in accordance with individual country safety requirements and local authority regulations.
4. Replace the waste ink tank in its housing and carefully reinsert the plastic tube into the neck of the tank, making sure it is positioned securely.
5. Screw the black plastic cap onto the neck of the waste ink tank, making sure that the flexible pipes are fixed securely.
Figure 39. Emptying the Waste Ink Tank
To eliminate the risk of spilling ink, always use a funnel.
3-13 Scitex Vision Grandjet Classic User Manual
Weekly Care
Checking the UPS
For systems using a UPS, it is recommended that weekly checks are conducted to ensure reliability, as described below.
!
Checking the UPS
1. Switch OFF mains power to the UPS .
2. With the printer running, ensure that the UPS is able to maintain power for at least 10 minutes (or for as long as applicable in accordance with the type of UPS).
3. Restore the mains power to the
UPS
.
note
In the event that the UPS is unable to maintain power for the prescribed period, refer to the manual supplied with the UPS.
Checking the Pressure Shafts and
Pistons
It is recommended that the Grandjet Classic printer pressure shafts and pistons are inspected weekly, to check that they are correctly adjusted and that movement is smooth and properly synchronized. This will ensure that pressure is applied evenly on the media for the entire length of the Y-axle pressure roller and eliminate possible media-loading difficulties.
The system is fitted with four Y-axle pressure shaft pistons. As described below, a simple adjustment procedure is required to compensate for irregularities which may occur in any one or more of these components.
DANGER
The pistons exert considerable pressure, therefore extreme care must be taken to avoid injury to hands or fingers. Only ONE person may operate the pistons!
When activating the pistons, always move away from the axles.
3-14 Scitex Vision Grandjet Classic User Manual
Weekly Care
!
Checking the Pressure Shafts and Adjusting Pistons
1. Make sure that the Grandjet Classic printer is loaded with substrate.
2. Standing at the rear of the printer, press the up arrow on the piston control switch (located above the pneumatic control panel) - see
.
If there are any irregularities, note which piston (or pistons) requires adjustment, then
proceed to Step 4 and continue with
onwards.
Piston adjustment is performed using either (or both) of the upper or lower adjustment screws located on the side of the piston and connected to the pneumatic
tubing, as shown in Figure 41 .
Upper Adjusting Screw
Pneumatic Tubing
Press here
Figure 40. Y-Axle Piston Control Button - ON
The pistons are immediately activated, causing the pressure shaft to rise slowly and exert pressure on the Y-axle.
3. While the pressure shaft is moving, check to see that movement is smooth and that it is rising evenly along its full length. Also make sure that the pistons are all operating at the same speed and that all parts of the roller reach the Y-axle simultaneoulsy.
If there are no problems, perform
to complete the checking procedure.
Close-up View
Lower Adjusting Screw
Figure 41. Piston Adjustment Screws
4. De-activate the pistons by pressing the down arrow
on the piston control switch - see
3-15 Scitex Vision Grandjet Classic User Manual
Weekly Care
Press here
Figure 42. Y-Axle Piston Control Button - OFF
The Y-axle pressure roller immediately disengages and falls slowly to return to its original position.
5. Working on the Y-axle piston (or pistons) requiring adjustment, use a small flat screwdriver (as shown
) to turn the relevant adjusting screw
(upper or lower) in the appropriate direction, and for the required amount of adjustment, as follows:
•
Upper screw adjustment - effects piston
downward movement
•
Lower screw adjustment - effects piston upward movement
Screw
Turning
Direction
Action Effect
Clockwise
Counter-
Clockwise
Closes air release valve
Opens air release valve
Increases resistance
Slows piston action
Decreases resistance
Speeds up piston action
Figure 43. Turning the Adjusting Screw
3-16
CAUTION
When adjusting pistons, take extreme care to stand away from moving axles before testing the results!
6. Repeat Step 2 and Step 3 to check the pressure
roller movement again.
7. If necessary, repeat Step 4 and
the movement again, making any additional adjustments necessary as previously described.
8. When the pressure roller adjustment has been completed satisfactorily, repeat
to turn OFF the piston control button and deactivate the pistons.
The Y-axle pressure roller immediately disengages and falls slowly to return to its original position.
The piston checking procedure is now complete.
Scitex Vision Grandjet Classic User Manual
4-1
Chapter 4
3-Monthly Care
Contents at a glance ...
Replacing the Ink Filters . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
3-Monthly Care
Replacing the Ink Filters
It is recommended that all ink filters located between the secondary ink tanks and the main ink tank tubes, be replaced every three months. However, this procedure may be required more frequently, should the ink flow appear to be impeded.
When replacing an ink filter, it is important that it is positioned correctly in order to maintain ink flow in the proper direction, as marked on the side of the filter and
!
Replacing the Ink Filters
1. Press either of the two Main Emergency Stop buttons.
The Grandjet Classic printer is now in safe mode.
2. Close the air pressure valves on each of the four main ink tanks.
3. With the head carriage parked in the home position, unscrew and remove the left panel on the front of the head carriage cover as shown in
.
To
Secondary Ink Tank Tube
Figure 44. Ink Filter Showing Direction of Ink Flow
From
Main Ink Tank Tube
4-2
Figure 45. Removing Front Panel from Head Carriage Cover
Scitex Vision Grandjet Classic User Manual
3-Monthly Care
4. Carefully disconnect the thin rubber tube connecting the uppermost print head to its secondary ink tank, attaching absorbent paper onto the end of the tube to absorb ink flow.
5. Disconnect the inlet and outlet tubes from the ink
Inlet Tube
Ink Filter
Outlet Tube
Figure 46. Ink Filter and Tubes
6. Remove the ink filter and dispose of it by taking the necessary precautions.
CAUTION
Dispose of waste material in accordance with individual country safety requirements and local authority regulations.
7. Remove a new ink filter from its plastic packet and fit it into position, making sure that the arrow marked on the side is facing in the correct direction
as shown in Figure 44 on page 4-2.
WARNING
Ink flow through the filter must be in the same direction as that marked by the arrow!
8. Connect the inlet and outlet tubes to the new filter.
9. Connect the ink tube to the secondary ink tank.
10. Repeat
, for the remaining ink filters in the black ink group.
11. Repeat
Step 4 through Step 9 for each of the filters
in the remaining ink color groups - yellow,
magenta, and cyan, respectively.
12. Check all ink tubes and filter connections for each ink color and make sure there is no ink leakage.
13. Open the main air pressure valves on the main ink tanks.
14. Replace the panel (removed in
of the head carriage cover and screw firmly into position.
4-3 Scitex Vision Grandjet Classic User Manual
3-Monthly Care
15. Test the print heads for leakage, by proceeding as follows:
With black ink spraying, steadily hold a sheet of white, A4-sized paper at a short distance in front of the print heads.
Move the paper slightly in a horizontal direction (to left or right) for a short distance (approx 1cm).
As the ink sprays onto the paper, six blocks of 6 thin vertical lines appear, as shown in this example:
Each block of printed lines corresponds to the print head
arrangement on the head carriage - see Figure 47 .
BLACK
A
B
C
D
E
F
G
H
YELLOW
A
B
C
D
E
F
MAGENTA
A
B
C
D
E
F
CYAN
A
B
C
D
E
F
Figure 47. Print Head Arrangement on Head Carriage
16. Inspect each of the six printed blocks and verify that all lines are sprayed evenly, and that no portions of a line are missing.
17. Repeat
Step 15 through Step 16 or each of the
remaining colors: yellow, magenta, and cyan.
4-4 Scitex Vision Grandjet Classic User Manual
3-Monthly Care
18. Release the Emergency Stop button by slightly twisting the metal ring beneath the top of the button, until it pops up and is now in the ready position.
CAUTION
Whenever performing this checking procedure, it is important to make sure that the Emergency
Stop button is enabled ( Step 18 ) and ready for
immediate use in the event of an emergency.
The ink filter replacement procedure is now complete and the Grandjet Classic printer is ready to start printing.
4-5 Scitex Vision Grandjet Classic User Manual
5-1
Chapter 5
General Maintenance
Contents at a glance ...
Replacing a Print Head . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
General Maintenance
Replacing a Print Head
The procedure described in this section may be performed at any stage at which it becomes necessary to replace one or more of the Grandjet Classic print heads. In maintaining reliable system performance, print head replacement will ensure dependable, high quality print output.The twenty-four print heads, which are precisely arranged on the head carriage in four arrays of six, are grouped according to color as
BLACK
YELLOW
A
B
C
D
E
F
G
H
A
B
C
D
E
F
MAGENTA
A
B
C
D
E
F
CYAN
A
B
C
D
E
F
Figure 48. Print Head Arrangement on Head Carriage
5-2
Before commencing the head replacement procedure, check that the following equipment is readily at hand:
•
•
•
•
•
•
•
Required number of new print heads
Plastic spray bottle* filled with solvent
Additional solvent
Glass syringe 50cc*
Silicone tubing (to attach to syringe)
Phillips screwdriver (small)*
Allen key No 2*
* supplied with the system note
Using disposable paper wipes while performing this procedure, will help to keep the Grandjet Classic printer clean.
When changing a print head, it is important that the surfaces of the print heads you are not replacing stay wet, therefore spray them repeatedly with solvent as necessary.
WARNING
When replacing a print head, the 35V power supply should be switched OFF (as described in the procedure instructions).
Do not leave the print heads disconnected from the 35V power for prolonged periods, since this may cause damage to the heads!
Scitex Vision Grandjet Classic User Manual
General Maintenance
!
Replacing a Print Head
1. Make sure that the head carriage is in the home position, as shown in
3. Remove the residue from each print head in turn, by holding the vacuum cleaner rubber pipe firmly against the print head (see
) while pressing the vacuum button.
Figure 49. Head Carriage in Home Position
2. Using the plastic spray bottle filled with clean solvent, thoroughly wet all the print heads you are
not replacing - see
Figure 51. Removing Ink Residue from the Heads
WARNING
Take special care to avoid contact or scratching the surface of the print heads with the vacuum cleaner pipe.
4. From the Grandjet Classic main screen, click on the Maintenance icon.
The Maintenance dialog box opens - see Figure 52
.
Figure 50. Spraying the Print Heads with Solvent
5-3 Scitex Vision Grandjet Classic User Manual
General Maintenance
Plastic stopper
Figure 52. Maintenance Dialog Box - 35V Power ON
5. Under the Power Supply controls, turn
OFF
the 35V power supply to the print heads in accordance with the respective color to be changed. (In this example, we will begin by turning off the heads that use
black ink by clicking the appropriate black button
[which is currently in the On status as shown in
]).
6. Disconnect the air tube from the appropriate secondary ink tank (in accordance with the black print head to be changed) and in place of this, insert the black plastic stopper (to create a vacuum inside the secondary tank) - see
Figure 53. Inserting the Stopper
7. Carefully unscrew (in a counter-clockwise direction) and disconnect the ink pipe plastic coupler from
the secondary ink tank as shown in Figure 54 .
Figure 54.Removing Plastic Coupler from the Secondary Tank
8. Screw a white plastic cap onto the nipple and gently turn in a clockwise direction for half a turn to seal it - see
5-4 Scitex Vision Grandjet Classic User Manual
General Maintenance
Figure 55. Fitting Plastic Cap
9. Disconnect and remove the flat cable from the defective print head - see
Plastic cap
.
Figure 56. Disconnecting Ribbon Cable
10. Carefully unscrew each of the two small Phillips screws that hold the print head in position within the slotted metal plate on the head carriage, as shown in
- see also Caution below.
Figure 57. Removing the Print Head from the Head Carriage
11. Using the 2 mm Allen key, remove the adapter from the head; discard the defective print head.
CAUTION
Dispose of the used print head in accordance with individual country safety requirements and local authority regulations.
12. Repeat
for any other defective print heads that use black ink.
13. Remove a new print head from its nylon packet and using the glass syringe (provided) and a short length of spare silicone tubing, flush the head with air to expel as much surplus oil as possible.
note
Each new print head is packed in a sealed nylon packet containing protective oil.
5-5 Scitex Vision Grandjet Classic User Manual
General Maintenance
14. Disconnect the syringe and tubing from the new print head. With the spare tubing still attached to the syringe, fill the syringe with 50 cc clean solvent.
15. Reattach the syringe and spare tubing to the new print head and carefully flush it with solvent to remove any residual oil - see
.
Allen key
Tube holder
Locating pin
Figure 59. Mounting Head Holder Adaptor onto the Print Head
18. Replace the tubing and tighten the screw on the tube holder to secure it firmly in position:
Figure 58. Flushing a New Print Head with Solvent
16. Disconnect the syringe and spare tubing from the new print head.
17. Carefully remove the tubing from the tubing holder on the new print head and mount the head holder adapter onto the head, using the Allen key to secure firmly - see
19. Repeat
other new print heads that will use black ink.
CAUTION
Remember to keep the surfaces of the print heads you are not replacing wet, by spraying them repeatedly with solvent as described in
5-6 Scitex Vision Grandjet Classic User Manual
General Maintenance
20. Working from the inside of the head carriage, and the uppermost group of heads (black), carefully mount one of the new print heads into the innermost available slot (refer to
5-2 and work outwards from A to F), proceeding as
follows:
With the new print head facing outwards, fit it into the empty slot, carefully holding the head (complete with head holder) in one hand, while steadying the protective plate with the other hand.
Carefully adjust the head and the protective plate so that the locating pin hole and top and bottom screw holes are properly aligned (see Caution on
), to enable the screws and locating pin to pass through the plate when the head holder is screwed into position.
21. Fit the print head locating pin into the locating pin hole and, with the head and protective plate correctly aligned with the slot, carefully tighten the two small
Phillips screws (removed in Step 10 ) onto the metal
plate, screwing them very gently into the head holder and making sure that the print head is secured firmly in position, and completely flush with the head carriage surface.
CAUTION
When tightening the screws, making sure you do not tighten them too tightly but that the print head is firmly secured and unable to move.
5-7
22. Fit the end of the plastic connecting pipe (attached to the print head) to the corresponding secondary ink tank on the print head carriage by inserting the plastic coupler into the inner cavity of the plastic nipple (see
below). Gently turn the screw coupling in a clockwise direction for half a turn.
Figure 60. Fitting the Plastic Pipe to the Secondary Ink Tank
CAUTION
Do not turn the screw coupling too tightly or you will damage the thread.
23. Repeat
Step 20 through Step 22 to mount any other
new print heads that will use black ink.
24. Reconnect the ribbon cable/s to the new print
25. From the Maintenance dialog box, and under the
Power Supply controls, turn
ON
the 35V power supply to the print heads that use black ink by
clicking the same button used in Step 5 (and which
is currently in the Off status).
26. Click
Scitex Vision Grandjet Classic User Manual
General Maintenance
The 35V power to the print heads is restored.
Figure 61. Maintenance Dialog Box - 35V Power ON
27. Thoroughly wet all the print heads with clean solvent, using the plastic spray bottle.
28. Suck solvent through each newly replaced print head in turn, holding the vacuum cleaner rubber pipe firmly against the print head (see
while pressing the vacuum button, until ink comes through the head and is visible in the ink pipe.
29. With black ink spraying, steadily hold a sheet of white, A4-sized paper at a short distance in front of the print heads.
Move the paper slightly in a horizontal direction (to left or right) for a short distance (approx 1cm).
As the ink sprays onto the paper, six blocks of 6 thin vertical lines appear, as shown in the following example:
5-8
Each block of printed lines corresponds to the print head
arrangement on the head carriage - see Figure 48 on page 5-2.
30. Inspect each of the six printed blocks and verify that all lines are sprayed evenly, and that no portions of a line are missing.
Replacement of defective print heads that use black ink is now complete.
31. Working downwards (color by color; yellow, then
magenta, then cyan) and outwards (from A to F [not
in reverse order]), repeat Step 5 through
any other print heads which need to be replaced.
WARNING
While performing this procedure, switch OFF the
35V Power to the corresponding group of print heads - yellow, magenta, or cyan, as appropriate
(see
).
Remember to keep the print heads you are not replacing wet, by spraying with solvent.
Scitex Vision Grandjet Classic User Manual
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